A combined tube-sheet heat exchanger with heat compensation function
A heat compensation and heat exchanger technology, applied in the direction of heat exchanger shell, heat exchange equipment, lighting and heating equipment, etc., can solve the problems of difficult installation and maintenance, large value of tube sheet wall thickness, etc., to reduce thermal stress, The effect of reducing the thickness of the tube sheet and reducing the harm
Inactive Publication Date: 2019-03-15
HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY
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Problems solved by technology
In order to ensure that the large-size heat exchanger tube sheet has sufficient rigidity and strength, the wall thickness of the general tube sheet is relatively large, and installation and maintenance are very difficult.
Method used
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[0022] as attached figure 1 As shown, the present invention mainly consists of a cylinder 7, an upper head 20 of the cylinder, an upper tube box 4, an upper tube plate 5, an upper tube plate head assembly, a tube bundle assembly, a lower tube plate 8, a lower tube plate head assembly, The lower pipe box 10 and the lower cylinder head 12 are composed; the cylinder 7, the upper cylinder head 20 and the lower cylinder head 12 are mainly used for pressure bearing and sealing; the tube bundle assembly includes the first group Tube bundle 18, the second group of tube bundles 16 and the third group of tube bundles 17, the three groups of tube bundles are respectively connected with three groups of upper and lower tube sheets and tube sheet heads; the upper tube sheet head assembly includes the first group of upper tube sheet heads 21. The second group of upper tube sheet heads 19 and the third group of upper tube sheet heads 3, the second group of upper tube sheet heads 19 and the th...
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The invention discloses a combined tube sheet heat exchanger with a thermal compensation function. Entire tube sheets are each partitioned into three relatively independent annular tube sheet bodies.The first tube sheet bodies are located in the centers of the heat exchanger tube sheets and are round. The other two tube sheet bodies of each tube sheet are annular, the second tube sheet bodies arelocated on the outer sides of the first tube sheet bodies, and the third tube sheet bodies are located on the outer sides of the second tube sheet bodies. The second tube sheet bodies and the third tube sheet bodies are each partitioned into a plurality of sector-ring-shaped structures by adopting partition plates, and then semicircular barrels are adopted as end enclosures. The sector-ring-shaped units, the partition plates and the semicircular barrels form tube sheet units, and each tube sheet unit is relatively independent and can be designed separately, the equivalent sizes of the tube sheets are reduced, and accordingly the thicknesses of the tube sheets are reduced. The tube sheet units on each tube sheet are connected with independent tube boxes through connecting pipes, and the tube boxes are connected with the outside and have the effects of collecting working media and buffering. Meanwhile, the tube sheet bodies adopt flexible connection, relative movement can occur to a certain extent among the tube sheet bodies in the axial direction, and accordingly the overall thermal stress is reduced.
Description
technical field [0001] The invention relates to a combined tube-sheet heat exchanger with thermal compensation function. Background technique [0002] Heat exchange devices are the most commonly used equipment in the process industry, and are widely used in many industrial and agricultural sectors such as chemical industry, oil refining, power, atomic energy, food, light industry, pharmaceuticals, and machinery. Shell-and-tube heat exchangers are one of the most commonly used heat exchange devices. In large-scale shell-and-tube heat exchangers, the tube sheets of the heat exchanger are more difficult to design, calculate, and manufacture due to their complex loads. In order to ensure sufficient rigidity and strength of the large-size heat exchanger tube sheet, the wall thickness of the general tube sheet is relatively large, which makes installation and maintenance very difficult. When the diameter of the heat exchanger is large and the operating pressure and temperature ar...
Claims
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IPC IPC(8): F28F9/007F28F9/26
Inventor 刘庆刚刘玻江朱海荣于新奇
Owner HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY